;
; ------------------------------------------------------------
;
;   PureBasic - Billboard
;
;    (c) 2003 - Fantaisie Software
;
; ------------------------------------------------------------
;

#CameraSpeed = 10

IncludeFile "Screen3DRequester.pb"

Define.f KeyX, KeyY, MouseX, MouseY

If InitEngine3D()

  Add3DArchive("Data\", #PB_3DArchive_FileSystem)
  
  InitSprite()
  InitKeyboard()
  InitMouse()
  
  If Screen3DRequester()
    
    ; First create our material, with a little rotate effect
    ;
    CreateMaterial(0, LoadTexture(0, "clouds.jpg"))
    RotateMaterial(0, 0.05, 1)
    
    ; Then create the billboard group and use the previous material
    ;
    CreateBillboardGroup(0, MaterialID(0), 10, 10)
    
    AddBillboard(0, 0,   0, 0, -40)
    AddBillboard(1, 0, -20, 0, -40)
    AddBillboard(2, 0,  20, 0, -40)
      
    CreateCamera(0, 0, 0, 100, 100)
          
    Repeat
      Screen3DEvents()
      
      ClearScreen(RGB(0, 0, 0))
            
      If ExamineKeyboard()
        
        If KeyboardPushed(#PB_Key_Left)
          KeyX = -#CameraSpeed 
        ElseIf KeyboardPushed(#PB_Key_Right)
          KeyX = #CameraSpeed 
        Else
          KeyX = 0
        EndIf
                  
        If KeyboardPushed(#PB_Key_Up)
          KeyY = -#CameraSpeed 
        ElseIf KeyboardPushed(#PB_Key_Down)
          KeyY = #CameraSpeed 
        Else
          KeyY = 0
        EndIf

      EndIf
      
      If ExamineMouse()
        MouseX = -(MouseDeltaX()/10)*#CameraSpeed/2
        MouseY = -(MouseDeltaY()/10)*#CameraSpeed/2
      EndIf
      
      RotateCamera(0, MouseX, MouseY, RollZ)
      MoveCamera  (0, KeyX, 0, KeyY)
    
      RenderWorld()
      Screen3DStats()
      FlipBuffers()
    Until KeyboardPushed(#PB_Key_Escape) Or Quit = 1
  EndIf
    
Else
  MessageRequester("Error", "The 3D Engine can't be initialized",0)
EndIf
  
End